Ford over-the-air update ITRM-26.DC
What it says26C10 Recall remedy -Addresses instances where the trailer lights and trailer brakes may not function NHTSA’s full summary ↓
Ford filed this with NHTSA as an over-the-air update dated Sep 9, 2026, received Sep 11, 2026, about the service brakes — 1 document under this number: ITRM-26. DC F-150. It names 1 model year (2021). An over-the-air update is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communication26C10 Recall remedy -Addresses instances where the trailer lights and trailer brakes may not function
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| ITRM-26. DC F-150 | Over-the-air update | Sep 9, 2026 | 11037291 | PDF, 22 KB |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 1 model year this bulletin names have filed 1,277 complaints with NHTSA since 2015. 176 of them name Electrical System — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
On the 2021 Ford F-150, the 32 owners who gave an odometer reading for Electrical System reported it at a median of 30,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
The F150 7pin flat The brake pin does not operate properly, fails to get signal from brake pedal. While pulling 6000lb trailer the trailer brakes failed to operate. I currently have a dealer app. On Feb 23 for a safety recall on this truck. They told me they would look at 7 pin at that time
2021 Ford F-150 · Electrical System · filed with NHTSA Feb 19, 2022
2021 Ford F-150. Consumer writes in regards to safety recall 21s56. The consumer stated the vehicle began rolling while in park and the engine powered off. The vehicle struck a trash can. The vehicle was scheduled for an appointment to be diagnosed
2021 Ford F-150 · Service Brakes · filed with NHTSA Apr 1, 2022
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the service brakes
Source: same model, same component group14 other manufacturer communications filed against the Ford F-150 under the same component group (service brakes), newest first. The eight newest are listed; the rest are on the Ford list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SSM 54993 | Service bulletin | Jul 8, 2026 | Some 2025-2026 F-150 Raptor vehicles may exhibit increased sensitivity or braking force when applying the brake pedal at slower speeds. To r… |
| SSM 54940 | Service bulletin | Jun 16, 2026 | Some 2021-2026 F-150 vehicles may exhibit a U2100:00 diagnostic trouble code (DTC) for initial configuration incomplete stored in the traile… |
| ITRM-26.B04 | Over-the-air update | Jun 12, 2026 | 26C10 Recall remedy -Addresses instances where the trailer lights and trailer brakes may not function |
| SSM 54733 | Service bulletin | Apr 9, 2026 | Some 2025-2026 Bronco/Expedition/Navigator/F-150/Ranger vehicles may exhibit a "Check Brake System" message in the instrument panel cluster… |
| ABS-25.8.3 | Over-the-air update | Feb 13, 2026 | "25S77 Recall remedy: -Addresses a potential loss of brake boost while driving. Hydraulic braking assist will still be available" |
| SSM 54401 | Service bulletin | Nov 25, 2025 | Some 2021-2025 F-150 vehicles may exhibit a stuck in park condition with no diagnostic trouble codes (DTCs). This may be due to connector C2… |
| ABS-25.30.8.3 | Over-the-air update | Oct 23, 2025 | "25S77 Recall remedy: -Addresses a potential loss of brake boost while driving. Hydraulic braking assist will still be available" |
| SSM 54250 | Service bulletin | Sep 26, 2025 | Some 2024-2025 Escape Hybrid/Maverick Hybrid/Nautilus Hybrid/F-150 non-Lightning/F-Super Duty/Bronco and 2025 Expedition/Navigator/Ranger ve… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Ford, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Ford ITRM-26.DC a recall?
No. A over-the-air update is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the ITRM-26.DC repair free?
A over-the-air update is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does ITRM-26.DC cover?
The manufacturer filed it against 1 model year: 2021 Ford F-150. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.